Woolworth Building, boiler room looking north.

Woolworth Building, boiler room looking north.

Woolworth Building, boiler room.

Woolworth Building, boiler room.

Woolworth Building. Boiler room.

Woolworth Building, boiler room looking N.W.

Woolworth Building, boiler room behind east boilers.

Woolworth Building. From south balcony looking toward north balcony.

Woolworth Building, between engine and boiler room looking East.

Woolworth Building, air cushions, from north end looking south.

Woolworth Building, boiler room from N.W. corner.

Woolworth Building, boiler room from N.W. corner.

Woolworth Building, boiler room from S.W. corner.

Woolworth Building, boiler room from N.E. corner.

Woolworth Building, interior, from north balcony looking toward south balcony.

Woolworth Building, north section from Broadway looking north.

Woolworth Building, from Barclay Street looking north.

Woolworth Building, sub-basement midway between boiler and engine room looking east.

Woolworth Building, north section from Park Pl. south.

Woolworth Building, Broadway looking south.